Ohio Voluntary-Payment Doctrine in Standard-Form Contracts: Certification on “Relevant Facts” and Conflicting Price Terms

1. Introduction

Klopfenstein, et al. v. Fifth Third Bank arises from Fifth Third Bank’s “Early Access” cash-advance program, a short-term loan product in which customers received an advance and repaid the principal plus a flat 10% “transaction fee” when their next qualifying deposit posted (or, failing that, after 35 days). The contract also stated that the fee “equates to an Annual Percentage Rate (APR) of 120%,” even though the effective APR depended on repayment timing and often exceeded 120%.

A class of borrowers pursued an Ohio breach-of-contract theory (the contract promised a 120% APR but charged higher) alongside a federal disclosure claim under TILA. A jury found breach but denied recovery based on Ohio’s voluntary-payment defense. On appeal, the Sixth Circuit concluded the decisive issue is whether Ohio law permits that defense in this setting and, finding Ohio law unsettled, sua sponte certified key questions to the Supreme Court of Ohio.

2. Summary of the Opinion

The Sixth Circuit did not decide whether the voluntary-payment defense ultimately bars recovery. Instead, it entered an Order of Certification under Ohio Sup. Ct. R. Prac. 9.02, holding that Ohio law lacks “controlling precedent” on (i) what counts as “relevant facts” for voluntary payment and (ii) whether the defense is available when a contract contains two potentially conflicting price terms—a recurring modern problem in standardized consumer contracting.

The court also addressed and rejected the class’s alternative appellate challenges (sufficiency of evidence, jury instructions, verdict form, special interrogatory), explaining that those arguments fail assuming the voluntary-payment defense is legally available. Accordingly, the certified issue is outcome-determinative: if Ohio limits the defense here, the class may obtain relief; if Ohio allows it, the judgment likely stands.

3. Analysis

3.1 Precedents Cited

The court’s certification decision is built on two bodies of authority: (a) federal-state allocation principles (Erie and certification) and (b) Ohio voluntary-payment doctrine and its muddled “mistake of law vs. mistake of fact” line.

A. Federal framework: Erie uncertainty and certification

  • Erie Railroad Co. v. Tompkins, 304 U.S. 64 (1938) and Berk v. Choy, 146 S. Ct. 546 (2026) (citing 28 U.S.C. § 1652): These anchor the proposition that, in diversity, state substantive law controls. The fight is not over whether Ohio law applies, but what Ohio law is.
  • In re Nat'l Prescription Opiate Litig., 82 F.4th 455 (6th Cir. 2023): Supplies the Sixth Circuit’s articulation of when an “Erie guess” is appropriate and when unsettled law warrants certification, emphasizing cooperative judicial federalism.
  • Lehman Bros. v. Schein, 416 U.S. 386 (1974): Provides the caution against speculation where state law is “unsettle[d]” and supports certification as the “better course.”
  • Am. Booksellers Found. for Free Expression v. Strickland, 560 F.3d 443 (6th Cir. 2009) and Planned Parenthood of Cincinnati Region v. Strickland, 531 F.3d 406 (6th Cir. 2008): Cited for the Sixth Circuit’s practice of certifying questions, including sua sponte, when state-law clarity is lacking.
  • Pennington v. State Farm Mut. Auto. Ins. Co., 553 F.3d 447 (6th Cir. 2009): Quoted (via In re Nat'l Prescription Opiate Litig.) for the “reasonably clear and principled course” benchmark that, if absent, favors certification.
  • Scott v. Bank One Tr. Co., 577 N.E.2d 1077 (Ohio 1991) (per curiam): Supports state sovereignty rationales: Ohio’s high court should have the “controlling word” on Ohio-law doctrine.

B. Ohio voluntary-payment doctrine: origins, elements, and exceptions

  • State ex rel. Dickman v. Defenbacher, 86 N.E.2d 5 (Ohio 1949) (per curiam): The central Ohio Supreme Court formulation: voluntary payments are not recoverable “merely because” the payer “mistook the law,” absent “fraud, duress, compulsion or mistake of fact.” This case frames the certified dispute: what is a “mistake of fact” in a modern pricing-disclosure contract?
  • City of Cleveland v. Ohio Bureau of Workers' Comp., 109 N.E.3d 84 (Ohio Ct. App. 2018) (quoted; labeled City of Cleveland I), rev'd on other grounds, 152 N.E.3d 172 (Ohio 2020) (City of Cleveland II): Provides a contemporary appellate statement that if payment is made “with full knowledge of the relevant facts,” a mistake of law defeats recovery—yet the Ohio Supreme Court reversed on other grounds, leaving the voluntary-payment contours unresolved.
  • Shelton v. Gill, 11 Ohio 417 (1842) and Farm Bureau Mut. Auto. Ins. Co. v. Buckeye Union Cas. Co., 67 N.E.2d 906 (Ohio 1946): Used to situate the doctrine’s equitable roots and its “natural justice” rationale—important because the court is uneasy about importing pre-merger equity concepts into mass consumer contracting.
  • City of Cincinnati v. Cincinnati Gaslight & Coke Co., 41 N.E. 239 (Ohio 1895) and Vindicator Printing Co. v. State, 67 N.E. 733 (Ohio 1903): Illustrate the traditional view that paying despite a dispute over “proper construction” of a contract is a classic “mistake of law” scenario; Cincinnati Gaslight’s syllabus states that “[a] payment made by reason of a wrong construction of the terms of a contract” is a mistake of law.
  • Firestone Tire & Rubber Co. v. Cent. Nat'l Bank of Cleveland, 112 N.E.2d 636 (Ohio 1953): Supplies a definition of “mistake of fact” as a “mistaken supposition of the existence of a specific fact which would entitle the other [party] to the money,” and exemplifies a “misleading bills of lading” context treated as factual mistake—one analog the class invokes for “misleading” price disclosure.
  • In re Kangesser, 247 N.E.2d 724 (Ohio 1969): Cited to underscore that Ohio Supreme Court engagement with the doctrine is decades old, contributing to uncertainty.
  • Lycan v. City of Cleveland, 218 N.E.3d 913 (Ohio 2022) (plurality opinion): Another recent Ohio Supreme Court case in which voluntary payment surfaced but was resolved on other grounds, reinforcing the lack of controlling guidance.

C. Conflicting Ohio appellate outcomes on “law vs. fact”

The Sixth Circuit highlights that intermediate Ohio decisions point “in all directions,” making a principled prediction difficult:

  • Consol. Mgmt., Inc. v. Handee Marts, Inc., 671 N.E.2d 1304 (Ohio Ct. App. 1996): Uses a Black’s Law Dictionary definition of mistake of fact, yet treats overpayment of rent based on miscalculation of a rent formula as mistake of law—supporting Fifth Third’s position that price-formula errors are “legal.”
  • Indus. Fabricators, Inc. v. Nat'l Cash Reg. Corp., No. 83AP-13, 1984 WL 4669 (Ohio Ct. App. Mar. 8, 1984): Suggests “mistake[] as to the contract price” is mistake of law—again aiding the bank.
  • Nationwide Life Ins. Co. v. Myers, 425 N.E.2d 952 (Ohio Ct. App. 1980): Payment to the wrong estate based on misreading contract provisions treated as mistake of law.
  • Lycan v. City of Cleveland, 142 N.E.3d 210 (Ohio Ct. App. 2019), rev'd on other grounds, 218 N.E.3d 913 (Ohio 2022): Treats misunderstanding legal obligation to pay parking fines as mistake of fact—cutting the other way.
  • Case W. Rsrv. Univ. v. Friedman, 515 N.E.2d 1004 (Ohio Ct. App. 1986): University paying taxes after selling property categorized as mistake of fact.

The court’s key point is not that any one of these cases controls, but that collectively they do not yield a coherent rule for a modern adhesive contract containing two plausible but conflicting price representations (flat fee versus APR).

D. Prior Sixth Circuit treatment of this same contract ambiguity

  • In re Fifth Third Cash Advance Litig., 925 F.3d 265 (6th Cir. 2019): In the earlier appeal, the Sixth Circuit held the contract was facially ambiguous because it defined APR both as a “yearly rate” and via a formula “untethered to a year.” That ambiguity reopened the breach-of-contract claim and frames why the case reached a jury on breach at all.
  • JNT Props., LLC v. Keybank Nat'l Ass'n, 981 N.E.2d 804 (Ohio 2012): Appears through Judge Larsen’s separate writing in In re Fifth Third Cash Advance Litig. to argue customers “received the benefit of the bargain” by paying the disclosed 10% fee—foreshadowing Fifth Third’s trial posture emphasizing the flat fee as the “real” price term.

E. Non-voluntary-payment appellate standards and trial-management precedents

While not central to the certified questions, the court relied on numerous federal and Ohio cases to reject the class’s other appellate arguments (directed verdict standards, new trial, jury instructions, verdict forms), including In re Brown, 342 F.3d 620 (6th Cir. 2003), Morales v. Am. Honda Motor Co., 151 F.3d 500 (6th Cir. 1998), Jarupan v. Hanna, 878 N.E.2d 66 (Ohio Ct. App. 2007), Est. of Cowling v. Est. of Cowling, 847 N.E.2d 405 (Ohio 2006), Barnes v. City of Cincinnati, 401 F.3d 729 (6th Cir. 2005), Johnson Controls, Inc. v. Jay Indus., Inc., 459 F.3d 717 (6th Cir. 2006), and Weeks v. Angelone, 528 U.S. 225 (2000).

3.2 Legal Reasoning

The Sixth Circuit’s reasoning proceeds in three steps:

  1. The voluntary-payment defense is dispositive. The jury found breach but no liability due to voluntary payment; the Sixth Circuit explains the class’s other objections largely fail if the defense is legally available. Thus, Ohio’s doctrine determines whether the judgment stands.
  2. Ohio law is materially unsettled on the critical classification problem. Dickman supplies only high-level categories (mistake of law bars recovery; mistake of fact defeats the defense), but Ohio Supreme Court precedent does not answer whether confusion caused by conflicting standardized price terms is “law” or “fact,” nor what “relevant facts” means in such a contract.
  3. Certification is preferable to an Erie guess. Citing In re Nat'l Prescription Opiate Litig., Lehman Bros., and Am. Booksellers, the court concludes there is no “reasonably clear and principled course” given inconsistent Ohio appellate outcomes and the absence of controlling Ohio Supreme Court precedent. It therefore uses its inherent authority to certify (even sua sponte).

3.3 Impact

The certification tees up potentially consequential clarifications for Ohio contract and restitution law:

  • Consumer finance and standardized contracts. If Ohio defines “relevant facts” to include knowledge of the effective price (e.g., the true APR implications), the voluntary-payment defense may be substantially narrowed in consumer contexts where disclosures are arguably confusing—even if some price component (here, the 10% fee) was known.
  • Price-term conflicts and “adhesion” dynamics. The second certified question expressly targets contracts with “two potentially conflicting price terms.” A ruling either way will guide future disputes involving contradictory fee/APR representations, add-on charges, or variable-rate computations.
  • Class action viability. Voluntary payment, if broadly available whenever a consumer knew the nominal fee, could defeat many class claims premised on misleading pricing metrics; if limited where disclosure structure creates confusion, class claims may proceed more readily.
  • Regulated disclosures interacting with state defenses. Although the Sixth Circuit declined to fold the TILA summary-judgment ruling into the jury charge, the Ohio Supreme Court’s eventual articulation may implicitly determine how state equitable defenses operate when federal disclosure regimes require standardized terms like APR.

4. Complex Concepts Simplified

  • APR versus a flat fee. A 10% fee can translate into very different APRs depending on how long the loan is outstanding. Paying back in 10 days yields a much higher APR than paying back in 30 days, even if the fee is identical.
  • Truth in Lending Act (TILA). A federal law requiring lenders to disclose certain credit costs clearly (including APR). This case’s TILA claim concerns whether Fifth Third’s APR disclosure complied with federal rules when loan duration varied.
  • Voluntary-payment defense. A doctrine that can bar recovery of money already paid if the payer paid voluntarily with full knowledge of the relevant facts. Traditionally, it blocks recovery for mistakes of law (misunderstanding legal obligations) but not for mistakes of fact (being wrong about key factual circumstances).
  • Mistake of law vs. mistake of fact. Ohio cases often treat “wrong construction of the terms of a contract” as legal mistake (Cincinnati Gaslight), but treat being misled about specific transactional facts (Firestone) as factual mistake. The hard question here is where “conflicting price disclosures inside a standard-form contract” fits.
  • Erie guess and certification. When state law is unclear, federal courts sometimes predict how the state supreme court would rule (an “Erie guess”). Certification instead asks the state supreme court directly, promoting accuracy and state control over state law.

5. Conclusion

This Sixth Circuit decision is significant less for a merits holding than for crystallizing a modern doctrinal problem and forcing an authoritative answer: under Ohio law, what are the “relevant facts” that make a payment truly voluntary, and can the voluntary-payment defense apply when a consumer contract contains conflicting price terms (here, a known 10% fee alongside a disputed 120% APR representation)?

By certifying these questions, the court acknowledges that Ohio’s older voluntary-payment precedents—developed in a different contracting era—do not clearly map onto contemporary standardized financial products. The Supreme Court of Ohio’s response will likely shape not only this litigation’s outcome, but also the broader enforceability of voluntary-payment defenses in Ohio consumer and pricing-disclosure disputes.